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| Troy |
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Hi im hoping someone can help me here, ive done a search but none of the topics were finished... (never said what prob was). anyhow the cars a 4speed auto 3.9L. it doesnt seem to want to go over 3500rpm when it hits around there it acts like its at top revs shatters ect. i change gear manually when passing as it doesnt kick down properly. i've had it a few months it was real sluggish when i got it has it was sitting around. so i changed oil, plugs, leads, and filters. running alot better but still wont rev out like it should so am a lose of power. my old ea would do 180 easy as( i backed off after that) ive only got up to 160 in this took a bit too, tho was up hill.
has anyone had this prob before? dont really wanna go buy a fuel pump or something and find out it was waste of money |
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| rushed |
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have you checked the timing?
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| 67RCE |
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Is your cat converter clogged?
_________________ ILL60 - EF XR8, Sunroof, Ticky Kit, 19x8.5/19x11 TE37's, 347, AFr185's, TFS BoxRcustom converter, Hurst Quarterstick, huge billet cam. |
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| Troy |
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i figured the timing was ok seeming it idled fine but no i havent.
has no cat im in nz dont gotta have them, only has one muffler got the other 2 cut out about 2 months ago |
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| 66 coupe |
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check the accelerator cable?
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| phongus |
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Check your air intake system. Air filter might be stuffed, get it cleaned or get a new one.
As 66 coupe said, accelerator cable...make sure it isn't stretched or caught on something. Check for vacuum leaks. That's all I can think of besides fuel system and MAP sensor, but those would usually cause the car to have a rough idle and also misfire/surge/jitter when driving under load. While you're at it, replace the fuel filter if the car has been sitting for a while. Might be clogged. Hope that helps. phong =P~
_________________ phongus = Post whore 2006 |
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| Troy |
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cable seems ok, air filter looks ok but maybe pretty old could a clogged filter cause it to act like its on rev limiter? fuel filter done. i'll check for leaks in the weekend and get back to ya.
the Exhaust note sounds a lil lumpy but has factory cam, that normal? im gonna replace engine anyhow not sure what with yet? but it be nice for this to run better for now |
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| phongus |
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clogged air filter can cause power loss...how much I am unsure of. You're basically choking the engine, so it won't perform very well. I'm sure that's a general rule for anything that needs to breath.
phong =P~
_________________ phongus = Post whore 2006 |
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| shyun |
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I'd go with the fuel pump. My dad had an ea that was a bit sluggish and wouldnt rev very high, the new fuel pump fixed that up. You could try doing a test of the fuel line to see how much fuel its deliverying and then try the fuel pump if it's low.
_________________ ED XR6, LeMans Red, 5-Speed |
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